E.K. Hornbeck is mocking Hillsboro in this line. He is telling Rachel to read an article from Cleveland Newspaper that talks about the trial. Hornbeck calls Cleveland modern Sodom andGemorrah because Sodom and Gemorrah were two cities in the Bible that were burned down for their constant sinning, and the Cleveland newspaper's view on the trial would be considered sinful to the people of Hillsboro.